Head Coach Gary Kubiak has repeatedly said that Siemian has a chance to start for the Broncos and while he has expressed confidence in the second year player, is Siemian a realistic option to lead the team this season?
In 2015, Siemian showcased some good and a lot of bad during the preseason. Before that, he struggled at Northwestern, getting beat out and outperformed during his junior season by a player who would convert to wide receiver. In college, he threw 27 touchdown passes against 27 interceptions while completing 59% of his passes.
Siemian was drafted for one reason, because he can throw the ball with the best of them. Many pundits called the selection of Siemian a poor pick even though he was drafted in the 7th round.
http://www.scout.com/nfl/broncos/story/1675685-film-room-studying-denver... Cecil Lammey, one of Denver's premier draftniks, called the selection of Siemian the worst pick in the entire draft. He came in and did some impressive things during the preseason as a rookie, but it is important to remember he performed against third and fourth string players, most of whom are no longer in the NFL. He showcased poor footwork, questionable decision making and didn't throw the ball downfield often.
There are positives that come with Siemian. He has that rocket arm and he is in his second year in Denver's system and looks more comfortable, but beyond that there are question marks.
It should also be noted that while showing improvement during OTAs is a great sign, players have yet to put pads on, so training camp and the preseason will be better indicators of Siemian's ability to quarterback the Broncos. His aforementioned footwork needs to improve as well as his decision making and accuracy.
In the end, I don't see how John Elway and Kubiak enter the regular season with Siemian as their starting QB. It is possible he comes into training camp and wows everyone, but that possibility is likely an outlier, otherwise the Broncos wouldn't have pursued every QB that was potentially available during the offseason. On a team looking to repeat as Super Bowl champions, Trevor Siemian is not the starter at QB.